Santana Ismael, Felix Manuel, Bengoechea Carlos
Escuela Politécnica Superior, Universidad de Sevilla, Calle Virgen de África, 7, 41011 Sevilla, Spain.
Polymers (Basel). 2024 Jun 12;16(12):1662. doi: 10.3390/polym16121662.
Seaweed, a diverse and abundant marine resource, holds promise as a renewable feedstock for bioplastics due to its polysaccharide-rich composition. This review explores different methods for extracting and processing seaweed polysaccharides, focusing on the production of alginate plastic materials. Seaweed emerges as a promising solution, due to its abundance, minimal environmental impact, and diverse industrial applications, such as feed and food, plant and soil nutrition, nutraceutical hydrocolloids, personal care, and bioplastics. Various manufacturing techniques, such as solvent casting, injection moulding, and extrusion, are discussed for producing seaweed-based bioplastics. Alginate, obtained mainly from brown seaweed, is particularly known for its gel-forming properties and presents versatile applications in many sectors (food, pharmaceutical, agriculture). This review further examines the current state of the bioplastics market, highlighting the growing demand for sustainable alternatives to conventional plastics. The integration of seaweed-derived bioplastics into mainstream markets presents opportunities for reducing plastic pollution and promoting sustainability in material production.
海藻是一种多样且丰富的海洋资源，由于其富含多糖的成分，有望成为生物塑料的可再生原料。本文综述了提取和加工海藻多糖的不同方法，重点关注藻酸盐塑料材料的生产。海藻因其丰富性、对环境影响极小以及在饲料和食品、植物与土壤营养、营养保健品水胶体、个人护理和生物塑料等多种工业应用中，而成为一种有前景的解决方案。文中讨论了用于生产海藻基生物塑料的各种制造技术，如溶剂浇铸、注塑成型和挤出成型。藻酸盐主要从褐藻中提取，尤其以其凝胶形成特性而闻名，并在许多领域（食品、制药、农业）有广泛应用。本文进一步考察了生物塑料市场的现状，强调了对传统塑料可持续替代品的需求不断增长。将海藻衍生的生物塑料融入主流市场为减少塑料污染和促进材料生产的可持续性提供了机遇。
